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Finding the Fourth Proportional to 52,608.60, 72,601.44 and 28,736.40

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Solution

The fourth proportional to 52,608.60, 72,601.44 and 28,736.40 is: 39,657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,608.60 : 72,601.44 = 28,736.40 : x
  2. Step 2: Convert to fraction form
    52,608.60/72,601.44 = 28,736.40/x
  3. Step 3: Cross multiply
    52,608.60x = 72,601.44 × 28,736.40
  4. Step 4: Simplify right side
    52,608.60x = 2,086,304,020.42
  5. Step 5: Solve for x
    x = 2,086,304,020.42/52,608.60
  6. Step 6: Final answer
    x = 39,657.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.